"the transducer will be covered with a plastic sheath (with gel on the inside). Use a liberal amount of gel on the transducer end outside of the plastic sheath as well."
"the prostate should be visible relative quickly after passing the anal sphincter i.e. do not put too much of the transducer into the rectum."
"introduce the transducer slowly through the anus, using gentle pressure. There will likely be a small amount of resistance at the anal sphincter, but one should not have to shove the transducer, and if you are encountering too much resistance, the transducer tip may be mispositioned against the perineum"
"one passing the anal sphincter and visualising the prostate, you do not have to apply as much pressure, and too much pressure may actually make it difficult to visualise the peripheral zone of the prostate. Once you see the prostate, try easing off on the pressure to see if the image improves"